i for one am going the other way have recently gone back to being employed and just do little jobs evenings and weekends and am far better off financially
earth rod should be at the origin of the supply so install new rod and connect it to switch fuse, then connect both rods together will give you a better overall Ra
would suggest looking at the honeywell wiring guide issue 16 the s plan plus shows 3 zone valves one hot water and two heating zones would just need to incorporate a couple more connectors in wiring centre
your rcd at the hook up point is the easiest one to test, disconnect caravan and test at rcd terminals the caravan rcd not so easy only way to test it would be too temporary link out or replace hook up rcd with main switch and replace after test
yes a 16 amp dedicated supply to immersion heater element and cylinder stat wiring not sure on your set up but guess there is a pump for heating and hot water and a separate under floor heating pump its the under floor heating pump that needs a relay because the zone valve needs to be open...
your mega flow cylinder will have a immersion heater element and a cylinder stat basically hot water on from programmer to common on cylinder stat normally open contact to brown of the valve as for your underfloor heating there is normally a wiring centre supplied with the kit which does all the...
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